Mechanical Properties of Open Graded Asphalt Mixtures with Pumice Aggregate | ||
| AUT Journal of Civil Engineering | ||
| مقاله 10، دوره 1، شماره 2، 2017، صفحه 189-194 اصل مقاله (1.02 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ceej.2017.13383.5396 | ||
| نویسندگان | ||
| Gh. H. Hamedi* 1؛ M. R. Esmaeeli2 | ||
| 1Faculty of Engineering, University of Guilan, Rasht, Iran | ||
| 2Faculty of Civil Engineering, Iran University of Science and Technology, Tehran, Iran | ||
| چکیده | ||
| Open graded asphalt is used as a wearing course to provide both increased safety in wet weather (through reduced surface water and spray during rain) and reduced noise levels. In this study, Pumice aggregates were applied as a portion of fine aggregate for the improvement of dynamical specification of porous asphalt and the Cantabro, Los Angeles abrasion, and the bitumen precipitation tests were conducted. First, the amount of optimized bitumen related to each of the three types of aggregates and fine Pumice has been estimated, then the properties of the Marshall Resistance and indirect tensile strength have been assigned. Mixtures with 5 percent of fine Pumice has shown better characteristics in Marshall test as well as indirect tensile strength. Also, the results of dynamic creep test showed that the rutting potential decreased by using Pumice aggregate. There is the best amount of permanent deformation for mixtures containing 5% Pumice | ||
تازه های تحقیق | ||
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| کلیدواژهها | ||
| Open graded asphalt mixture؛ Pumice؛ Stiffness modulus؛ Rutting؛ Moisture Susceptibility | ||
| مراجع | ||
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